WIP

src/runner/run.js

@@ -0,0 +1,41 @@
+import { seed } from './seed.js';
+import { fetchColumns } from './columns.js';
+import { assemble } from './assemble.js';
+import { rowsToCsv, writeCsv } from './csv.js';
+import { registerFile, registerReport } from './report.js';
+import { touch } from './job.js';
+import { groupsQuery, groupsUpdate } from '../db.js';
+
+// Ties the six steps together. Runs with the captured groups (see
+// captureGroups), returns { reportUri, fileUri, rowCount }. The task is
+// touched once per column group so the dashboard shows movement.
+
+export async function run(allowedGroups, parsed, profile, title, taskUri, extra = {}) {
+  const queryFn = sparql => groupsQuery(sparql, allowedGroups);
+  const updateFn = (sparql, extra) => groupsUpdate(sparql, allowedGroups, extra);
+
+  const subjects = await seed(queryFn, parsed);
+
+  const values = new Map();
+  await fetchColumns(queryFn, subjects, parsed, values,
+    taskUri ? () => touch(updateFn, taskUri) : null);
+
+  const rows = assemble(subjects, values, parsed);
+  const fileName = `${slug(title)}.csv`;
+  const csv = rowsToCsv(rows);
+  const filePath = writeCsv(fileName, csv);
+
+  const fileUri = await registerFile((sparql) => updateFn(sparql), fileName, filePath);
+  const reportUri = await registerReport((sparql) => updateFn(sparql), title, fileUri, extra);
+
+  return { reportUri, fileUri, rowCount: rows.length - 1, filePath };
+}
+
+// Exported for run_report: the file name must be known before the run starts,
+// so the chat can show a pending card named after the report.
+export function slug(title) {
+  return (title || 'report').toLowerCase()
+    .replace(/[^a-z0-9]+/g, '-')
+    .replace(/^-+|-+$/g, '')
+    .slice(0, 80) || 'report';
+}